Add vore animations into the grapples based on % of HP. Full HP, just a grapple. 75% HP, maw teasing. 50%, head in maw. 25% Swallowed. 0%, full finisher. It would make the game more engaging and, overall, add more enjoyable gameplay for an undeniably vorny audience, as the only current way to get the content we want is to die.
Give more control over digestion speed, as it happens woefully fast and is hard to enjoy. One moment, you're fully swallowed, then 3 seconds later, everything's already ended. Just letting players press Space to move on the stages of digestion allows for far more enjoyability from the players, and actually lets people see the work that's already been done. Win win.
More dialogue would be great. Love the direction of each character having their own flare for things, so having more teasing/demeaning dialogue would be yet another boon for this game. Especially if given the addition of the character not instantaneously digesting.
Don't put a lock on the gallery. Having immediate access to that is not only unfathomably based, but also lets people see the sheer volume of work put into a rather misleading v0.1 file name. I certainly didn't expect there to be as much content present as there already is, and being proven otherwise made for a delightful realization.
Absolutely fantastic first iteration, and one I sincerely hope gets even more love put into it! The quality from even the very first version is astounding!